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new MESA_DEBUG option: disassem
[mesa.git] / src / mesa / main / texformat.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 6.1
4 *
5 * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26 /**
27 * \file texformat.c
28 * Texture formats.
29 *
30 * \author Gareth Hughes
31 */
32
33
34 #include "glheader.h"
35 #include "colormac.h"
36 #include "context.h"
37 #include "image.h"
38 #include "imports.h"
39 #include "mtypes.h"
40 #include "texformat.h"
41 #include "teximage.h"
42 #include "texstate.h"
43 #include "texstore.h"
44
45
46
47 /* Texel fetch routines for all supported formats
48 */
49 #define DIM 1
50 #include "texformat_tmp.h"
51
52 #define DIM 2
53 #include "texformat_tmp.h"
54
55 #define DIM 3
56 #include "texformat_tmp.h"
57
58 /**
59 * Null texel fetch function.
60 *
61 * Have to have this so the FetchTexel function pointer is never NULL.
62 */
63 static void fetch_null_texel( const struct gl_texture_image *texImage,
64 GLint i, GLint j, GLint k, GLchan *texel )
65 {
66 (void) texImage; (void) i; (void) j; (void) k;
67 texel[RCOMP] = 0;
68 texel[GCOMP] = 0;
69 texel[BCOMP] = 0;
70 texel[ACOMP] = 0;
71 _mesa_warning(NULL, "fetch_null_texel() called!");
72 }
73
74 static void fetch_null_texelf( const struct gl_texture_image *texImage,
75 GLint i, GLint j, GLint k, GLfloat *texel )
76 {
77 (void) texImage; (void) i; (void) j; (void) k;
78 texel[RCOMP] = 0.0;
79 texel[GCOMP] = 0.0;
80 texel[BCOMP] = 0.0;
81 texel[ACOMP] = 0.0;
82 _mesa_warning(NULL, "fetch_null_texelf() called!");
83 }
84
85 static void store_null_texel(struct gl_texture_image *texImage,
86 GLint i, GLint j, GLint k, const void *texel)
87 {
88 /* no-op */
89 }
90
91
92
93 /***************************************************************/
94 /** \name Default GLchan-based formats */
95 /*@{*/
96
97 const struct gl_texture_format _mesa_texformat_rgba = {
98 MESA_FORMAT_RGBA, /* MesaFormat */
99 GL_RGBA, /* BaseFormat */
100 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
101 CHAN_BITS, /* RedBits */
102 CHAN_BITS, /* GreenBits */
103 CHAN_BITS, /* BlueBits */
104 CHAN_BITS, /* AlphaBits */
105 0, /* LuminanceBits */
106 0, /* IntensityBits */
107 0, /* IndexBits */
108 0, /* DepthBits */
109 4 * sizeof(GLchan), /* TexelBytes */
110 _mesa_texstore_rgba, /* StoreTexImageFunc */
111 fetch_texel_1d_rgba, /* FetchTexel1D */
112 fetch_texel_2d_rgba, /* FetchTexel2D */
113 fetch_texel_3d_rgba, /* FetchTexel3D */
114 fetch_texel_1d_f_rgba, /* FetchTexel1Df */
115 fetch_texel_2d_f_rgba, /* FetchTexel2Df */
116 fetch_texel_3d_f_rgba, /* FetchTexel3Df */
117 store_texel_rgba /* StoreTexel */
118 };
119
120 const struct gl_texture_format _mesa_texformat_rgb = {
121 MESA_FORMAT_RGB, /* MesaFormat */
122 GL_RGB, /* BaseFormat */
123 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
124 CHAN_BITS, /* RedBits */
125 CHAN_BITS, /* GreenBits */
126 CHAN_BITS, /* BlueBits */
127 0, /* AlphaBits */
128 0, /* LuminanceBits */
129 0, /* IntensityBits */
130 0, /* IndexBits */
131 0, /* DepthBits */
132 3 * sizeof(GLchan), /* TexelBytes */
133 _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */
134 fetch_texel_1d_rgb, /* FetchTexel1D */
135 fetch_texel_2d_rgb, /* FetchTexel2D */
136 fetch_texel_3d_rgb, /* FetchTexel3D */
137 fetch_texel_1d_f_rgb, /* FetchTexel1Df */
138 fetch_texel_2d_f_rgb, /* FetchTexel2Df */
139 fetch_texel_3d_f_rgb, /* FetchTexel3Df */
140 store_texel_rgb /* StoreTexel */
141 };
142
143 const struct gl_texture_format _mesa_texformat_alpha = {
144 MESA_FORMAT_ALPHA, /* MesaFormat */
145 GL_ALPHA, /* BaseFormat */
146 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
147 0, /* RedBits */
148 0, /* GreenBits */
149 0, /* BlueBits */
150 CHAN_BITS, /* AlphaBits */
151 0, /* LuminanceBits */
152 0, /* IntensityBits */
153 0, /* IndexBits */
154 0, /* DepthBits */
155 sizeof(GLchan), /* TexelBytes */
156 _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */
157 fetch_texel_1d_alpha, /* FetchTexel1D */
158 fetch_texel_2d_alpha, /* FetchTexel2D */
159 fetch_texel_3d_alpha, /* FetchTexel3D */
160 fetch_texel_1d_f_alpha, /* FetchTexel1Df */
161 fetch_texel_2d_f_alpha, /* FetchTexel2Df */
162 fetch_texel_3d_f_alpha, /* FetchTexel3Df */
163 store_texel_alpha /* StoreTexel */
164 };
165
166 const struct gl_texture_format _mesa_texformat_luminance = {
167 MESA_FORMAT_LUMINANCE, /* MesaFormat */
168 GL_LUMINANCE, /* BaseFormat */
169 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
170 0, /* RedBits */
171 0, /* GreenBits */
172 0, /* BlueBits */
173 0, /* AlphaBits */
174 CHAN_BITS, /* LuminanceBits */
175 0, /* IntensityBits */
176 0, /* IndexBits */
177 0, /* DepthBits */
178 sizeof(GLchan), /* TexelBytes */
179 _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */
180 fetch_texel_1d_luminance, /* FetchTexel1D */
181 fetch_texel_2d_luminance, /* FetchTexel2D */
182 fetch_texel_3d_luminance, /* FetchTexel3D */
183 fetch_texel_1d_f_luminance, /* FetchTexel1Df */
184 fetch_texel_2d_f_luminance, /* FetchTexel2Df */
185 fetch_texel_3d_f_luminance, /* FetchTexel3Df */
186 store_texel_luminance /* StoreTexel */
187 };
188
189 const struct gl_texture_format _mesa_texformat_luminance_alpha = {
190 MESA_FORMAT_LUMINANCE_ALPHA, /* MesaFormat */
191 GL_LUMINANCE_ALPHA, /* BaseFormat */
192 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
193 0, /* RedBits */
194 0, /* GreenBits */
195 0, /* BlueBits */
196 CHAN_BITS, /* AlphaBits */
197 CHAN_BITS, /* LuminanceBits */
198 0, /* IntensityBits */
199 0, /* IndexBits */
200 0, /* DepthBits */
201 2 * sizeof(GLchan), /* TexelBytes */
202 _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */
203 fetch_texel_1d_luminance_alpha, /* FetchTexel1D */
204 fetch_texel_2d_luminance_alpha, /* FetchTexel2D */
205 fetch_texel_3d_luminance_alpha, /* FetchTexel3D */
206 fetch_texel_1d_f_luminance_alpha, /* FetchTexel1Df */
207 fetch_texel_2d_f_luminance_alpha, /* FetchTexel2Df */
208 fetch_texel_3d_f_luminance_alpha, /* FetchTexel3Df */
209 store_texel_luminance_alpha /* StoreTexel */
210 };
211
212 const struct gl_texture_format _mesa_texformat_intensity = {
213 MESA_FORMAT_INTENSITY, /* MesaFormat */
214 GL_INTENSITY, /* BaseFormat */
215 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
216 0, /* RedBits */
217 0, /* GreenBits */
218 0, /* BlueBits */
219 0, /* AlphaBits */
220 0, /* LuminanceBits */
221 CHAN_BITS, /* IntensityBits */
222 0, /* IndexBits */
223 0, /* DepthBits */
224 sizeof(GLchan), /* TexelBytes */
225 _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */
226 fetch_texel_1d_intensity, /* FetchTexel1D */
227 fetch_texel_2d_intensity, /* FetchTexel2D */
228 fetch_texel_3d_intensity, /* FetchTexel3D */
229 fetch_texel_1d_f_intensity, /* FetchTexel1Df */
230 fetch_texel_2d_f_intensity, /* FetchTexel2Df */
231 fetch_texel_3d_f_intensity, /* FetchTexel3Df */
232 store_texel_intensity /* StoreTexel */
233 };
234
235 const struct gl_texture_format _mesa_texformat_depth_component_float32 = {
236 MESA_FORMAT_DEPTH_COMPONENT_FLOAT32, /* MesaFormat */
237 GL_DEPTH_COMPONENT, /* BaseFormat */
238 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
239 0, /* RedBits */
240 0, /* GreenBits */
241 0, /* BlueBits */
242 0, /* AlphaBits */
243 0, /* LuminanceBits */
244 0, /* IntensityBits */
245 0, /* IndexBits */
246 sizeof(GLfloat) * 8, /* DepthBits */
247 sizeof(GLfloat), /* TexelBytes */
248 _mesa_texstore_depth_component_float32,/* StoreTexImageFunc */
249 fetch_null_texel, /* FetchTexel1D */
250 fetch_null_texel, /* FetchTexel1D */
251 fetch_null_texel, /* FetchTexel1D */
252 fetch_texel_1d_f_depth_component_f32,/* FetchTexel1Df */
253 fetch_texel_2d_f_depth_component_f32,/* FetchTexel2Df */
254 fetch_texel_3d_f_depth_component_f32,/* FetchTexel3Df */
255 store_texel_depth_component_f32 /* StoreTexel */
256 };
257
258 const struct gl_texture_format _mesa_texformat_depth_component16 = {
259 MESA_FORMAT_DEPTH_COMPONENT16, /* MesaFormat */
260 GL_DEPTH_COMPONENT, /* BaseFormat */
261 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
262 0, /* RedBits */
263 0, /* GreenBits */
264 0, /* BlueBits */
265 0, /* AlphaBits */
266 0, /* LuminanceBits */
267 0, /* IntensityBits */
268 0, /* IndexBits */
269 sizeof(GLushort) * 8, /* DepthBits */
270 sizeof(GLushort), /* TexelBytes */
271 _mesa_texstore_depth_component16, /* StoreTexImageFunc */
272 fetch_null_texel, /* FetchTexel1D */
273 fetch_null_texel, /* FetchTexel1D */
274 fetch_null_texel, /* FetchTexel1D */
275 fetch_texel_1d_f_depth_component16, /* FetchTexel1Df */
276 fetch_texel_2d_f_depth_component16, /* FetchTexel2Df */
277 fetch_texel_3d_f_depth_component16, /* FetchTexel3Df */
278 store_texel_depth_component16 /* StoreTexel */
279 };
280
281 const struct gl_texture_format _mesa_texformat_rgba_float32 = {
282 MESA_FORMAT_RGBA_FLOAT32, /* MesaFormat */
283 GL_RGBA, /* BaseFormat */
284 GL_FLOAT, /* DataType */
285 8 * sizeof(GLfloat), /* RedBits */
286 8 * sizeof(GLfloat), /* GreenBits */
287 8 * sizeof(GLfloat), /* BlueBits */
288 8 * sizeof(GLfloat), /* AlphaBits */
289 0, /* LuminanceBits */
290 0, /* IntensityBits */
291 0, /* IndexBits */
292 0, /* DepthBits */
293 4 * sizeof(GLfloat), /* TexelBytes */
294 _mesa_texstore_rgba_float32, /* StoreTexImageFunc */
295 fetch_texel_1d_rgba_f32, /* FetchTexel1D */
296 fetch_texel_2d_rgba_f32, /* FetchTexel1D */
297 fetch_texel_3d_rgba_f32, /* FetchTexel1D */
298 fetch_texel_1d_f_rgba_f32, /* FetchTexel1Df */
299 fetch_texel_2d_f_rgba_f32, /* FetchTexel2Df */
300 fetch_texel_3d_f_rgba_f32, /* FetchTexel3Df */
301 store_texel_rgba_f32 /* StoreTexel */
302 };
303
304 const struct gl_texture_format _mesa_texformat_rgba_float16 = {
305 MESA_FORMAT_RGBA_FLOAT16, /* MesaFormat */
306 GL_RGBA, /* BaseFormat */
307 GL_FLOAT, /* DataType */
308 8 * sizeof(GLhalfARB), /* RedBits */
309 8 * sizeof(GLhalfARB), /* GreenBits */
310 8 * sizeof(GLhalfARB), /* BlueBits */
311 8 * sizeof(GLhalfARB), /* AlphaBits */
312 0, /* LuminanceBits */
313 0, /* IntensityBits */
314 0, /* IndexBits */
315 0, /* DepthBits */
316 4 * sizeof(GLhalfARB), /* TexelBytes */
317 _mesa_texstore_rgba_float16, /* StoreTexImageFunc */
318 fetch_texel_1d_rgba_f16, /* FetchTexel1D */
319 fetch_texel_2d_rgba_f16, /* FetchTexel1D */
320 fetch_texel_3d_rgba_f16, /* FetchTexel1D */
321 fetch_texel_1d_f_rgba_f16, /* FetchTexel1Df */
322 fetch_texel_2d_f_rgba_f16, /* FetchTexel2Df */
323 fetch_texel_3d_f_rgba_f16, /* FetchTexel3Df */
324 store_texel_rgba_f16 /* StoreTexel */
325 };
326
327 const struct gl_texture_format _mesa_texformat_rgb_float32 = {
328 MESA_FORMAT_RGB_FLOAT32, /* MesaFormat */
329 GL_RGB, /* BaseFormat */
330 GL_FLOAT, /* DataType */
331 8 * sizeof(GLfloat), /* RedBits */
332 8 * sizeof(GLfloat), /* GreenBits */
333 8 * sizeof(GLfloat), /* BlueBits */
334 0, /* AlphaBits */
335 0, /* LuminanceBits */
336 0, /* IntensityBits */
337 0, /* IndexBits */
338 0, /* DepthBits */
339 3 * sizeof(GLfloat), /* TexelBytes */
340 _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */
341 fetch_texel_1d_rgb_f32, /* FetchTexel1D */
342 fetch_texel_2d_rgb_f32, /* FetchTexel1D */
343 fetch_texel_3d_rgb_f32, /* FetchTexel1D */
344 fetch_texel_1d_f_rgb_f32, /* FetchTexel1Df */
345 fetch_texel_2d_f_rgb_f32, /* FetchTexel2Df */
346 fetch_texel_3d_f_rgb_f32, /* FetchTexel3Df */
347 store_texel_rgb_f32 /* StoreTexel */
348 };
349
350 const struct gl_texture_format _mesa_texformat_rgb_float16 = {
351 MESA_FORMAT_RGB_FLOAT16, /* MesaFormat */
352 GL_RGB, /* BaseFormat */
353 GL_FLOAT, /* DataType */
354 8 * sizeof(GLhalfARB), /* RedBits */
355 8 * sizeof(GLhalfARB), /* GreenBits */
356 8 * sizeof(GLhalfARB), /* BlueBits */
357 0, /* AlphaBits */
358 0, /* LuminanceBits */
359 0, /* IntensityBits */
360 0, /* IndexBits */
361 0, /* DepthBits */
362 3 * sizeof(GLhalfARB), /* TexelBytes */
363 _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */
364 fetch_texel_1d_rgb_f16, /* FetchTexel1D */
365 fetch_texel_2d_rgb_f16, /* FetchTexel1D */
366 fetch_texel_3d_rgb_f16, /* FetchTexel1D */
367 fetch_texel_1d_f_rgb_f16, /* FetchTexel1Df */
368 fetch_texel_2d_f_rgb_f16, /* FetchTexel2Df */
369 fetch_texel_3d_f_rgb_f16, /* FetchTexel3Df */
370 store_texel_rgb_f16 /* StoreTexel */
371 };
372
373 const struct gl_texture_format _mesa_texformat_alpha_float32 = {
374 MESA_FORMAT_ALPHA_FLOAT32, /* MesaFormat */
375 GL_ALPHA, /* BaseFormat */
376 GL_FLOAT, /* DataType */
377 0, /* RedBits */
378 0, /* GreenBits */
379 0, /* BlueBits */
380 8 * sizeof(GLfloat), /* AlphaBits */
381 0, /* LuminanceBits */
382 0, /* IntensityBits */
383 0, /* IndexBits */
384 0, /* DepthBits */
385 1 * sizeof(GLfloat), /* TexelBytes */
386 _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */
387 fetch_texel_1d_alpha_f32, /* FetchTexel1D */
388 fetch_texel_2d_alpha_f32, /* FetchTexel1D */
389 fetch_texel_3d_alpha_f32, /* FetchTexel1D */
390 fetch_texel_1d_f_alpha_f32, /* FetchTexel1Df */
391 fetch_texel_2d_f_alpha_f32, /* FetchTexel2Df */
392 fetch_texel_3d_f_alpha_f32, /* FetchTexel3Df */
393 store_texel_alpha_f32 /* StoreTexel */
394 };
395
396 const struct gl_texture_format _mesa_texformat_alpha_float16 = {
397 MESA_FORMAT_ALPHA_FLOAT16, /* MesaFormat */
398 GL_ALPHA, /* BaseFormat */
399 GL_FLOAT, /* DataType */
400 0, /* RedBits */
401 0, /* GreenBits */
402 0, /* BlueBits */
403 8 * sizeof(GLhalfARB), /* AlphaBits */
404 0, /* LuminanceBits */
405 0, /* IntensityBits */
406 0, /* IndexBits */
407 0, /* DepthBits */
408 1 * sizeof(GLhalfARB), /* TexelBytes */
409 _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */
410 fetch_texel_1d_alpha_f16, /* FetchTexel1D */
411 fetch_texel_2d_alpha_f16, /* FetchTexel1D */
412 fetch_texel_3d_alpha_f16, /* FetchTexel1D */
413 fetch_texel_1d_f_alpha_f16, /* FetchTexel1Df */
414 fetch_texel_2d_f_alpha_f16, /* FetchTexel2Df */
415 fetch_texel_3d_f_alpha_f16, /* FetchTexel3Df */
416 store_texel_alpha_f16 /* StoreTexel */
417 };
418
419 const struct gl_texture_format _mesa_texformat_luminance_float32 = {
420 MESA_FORMAT_LUMINANCE_FLOAT32, /* MesaFormat */
421 GL_LUMINANCE, /* BaseFormat */
422 GL_FLOAT, /* DataType */
423 0, /* RedBits */
424 0, /* GreenBits */
425 0, /* BlueBits */
426 0, /* AlphaBits */
427 8 * sizeof(GLfloat), /* LuminanceBits */
428 0, /* IntensityBits */
429 0, /* IndexBits */
430 0, /* DepthBits */
431 1 * sizeof(GLfloat), /* TexelBytes */
432 _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */
433 fetch_texel_1d_luminance_f32, /* FetchTexel1D */
434 fetch_texel_2d_luminance_f32, /* FetchTexel2D */
435 fetch_texel_3d_luminance_f32, /* FetchTexel3D */
436 fetch_texel_1d_f_luminance_f32, /* FetchTexel1Df */
437 fetch_texel_2d_f_luminance_f32, /* FetchTexel2Df */
438 fetch_texel_3d_f_luminance_f32, /* FetchTexel3Df */
439 store_texel_luminance_f32 /* StoreTexel */
440 };
441
442 const struct gl_texture_format _mesa_texformat_luminance_float16 = {
443 MESA_FORMAT_LUMINANCE_FLOAT16, /* MesaFormat */
444 GL_LUMINANCE, /* BaseFormat */
445 GL_FLOAT, /* DataType */
446 0, /* RedBits */
447 0, /* GreenBits */
448 0, /* BlueBits */
449 0, /* AlphaBits */
450 8 * sizeof(GLhalfARB), /* LuminanceBits */
451 0, /* IntensityBits */
452 0, /* IndexBits */
453 0, /* DepthBits */
454 1 * sizeof(GLhalfARB), /* TexelBytes */
455 _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */
456 fetch_texel_1d_luminance_f16, /* FetchTexel1D */
457 fetch_texel_2d_luminance_f16, /* FetchTexel2D */
458 fetch_texel_3d_luminance_f16, /* FetchTexel3D */
459 fetch_texel_1d_f_luminance_f16, /* FetchTexel1Df */
460 fetch_texel_2d_f_luminance_f16, /* FetchTexel2Df */
461 fetch_texel_3d_f_luminance_f16, /* FetchTexel3Df */
462 store_texel_luminance_f16 /* StoreTexel */
463 };
464
465 const struct gl_texture_format _mesa_texformat_luminance_alpha_float32 = {
466 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32, /* MesaFormat */
467 GL_LUMINANCE_ALPHA, /* BaseFormat */
468 GL_FLOAT, /* DataType */
469 0, /* RedBits */
470 0, /* GreenBits */
471 0, /* BlueBits */
472 8 * sizeof(GLfloat), /* AlphaBits */
473 8 * sizeof(GLfloat), /* LuminanceBits */
474 0, /* IntensityBits */
475 0, /* IndexBits */
476 0, /* DepthBits */
477 2 * sizeof(GLfloat), /* TexelBytes */
478 _mesa_texstore_rgba_float32, /* StoreTexImageFunc */
479 fetch_texel_1d_luminance_alpha_f32, /* FetchTexel1D */
480 fetch_texel_2d_luminance_alpha_f32, /* FetchTexel2D */
481 fetch_texel_3d_luminance_alpha_f32, /* FetchTexel3D */
482 fetch_texel_1d_f_luminance_alpha_f32,/* FetchTexel1Df */
483 fetch_texel_2d_f_luminance_alpha_f32,/* FetchTexel2Df */
484 fetch_texel_3d_f_luminance_alpha_f32,/* FetchTexel3Df */
485 store_texel_luminance_alpha_f32 /* StoreTexel */
486 };
487
488 const struct gl_texture_format _mesa_texformat_luminance_alpha_float16 = {
489 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16, /* MesaFormat */
490 GL_LUMINANCE_ALPHA, /* BaseFormat */
491 GL_FLOAT, /* DataType */
492 0, /* RedBits */
493 0, /* GreenBits */
494 0, /* BlueBits */
495 8 * sizeof(GLhalfARB), /* AlphaBits */
496 8 * sizeof(GLhalfARB), /* LuminanceBits */
497 0, /* IntensityBits */
498 0, /* IndexBits */
499 0, /* DepthBits */
500 2 * sizeof(GLhalfARB), /* TexelBytes */
501 _mesa_texstore_rgba_float16, /* StoreTexImageFunc */
502 fetch_texel_1d_luminance_alpha_f16, /* FetchTexel1D */
503 fetch_texel_2d_luminance_alpha_f16, /* FetchTexel2D */
504 fetch_texel_3d_luminance_alpha_f16, /* FetchTexel3D */
505 fetch_texel_1d_f_luminance_alpha_f16,/* FetchTexel1Df */
506 fetch_texel_2d_f_luminance_alpha_f16,/* FetchTexel2Df */
507 fetch_texel_3d_f_luminance_alpha_f16,/* FetchTexel3Df */
508 store_texel_luminance_alpha_f16 /* StoreTexel */
509 };
510
511 const struct gl_texture_format _mesa_texformat_intensity_float32 = {
512 MESA_FORMAT_INTENSITY_FLOAT32, /* MesaFormat */
513 GL_INTENSITY, /* BaseFormat */
514 GL_FLOAT, /* DataType */
515 0, /* RedBits */
516 0, /* GreenBits */
517 0, /* BlueBits */
518 0, /* AlphaBits */
519 0, /* LuminanceBits */
520 8 * sizeof(GLfloat), /* IntensityBits */
521 0, /* IndexBits */
522 0, /* DepthBits */
523 1 * sizeof(GLfloat), /* TexelBytes */
524 _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */
525 fetch_texel_1d_intensity_f32, /* FetchTexel1D */
526 fetch_texel_2d_intensity_f32, /* FetchTexel2D */
527 fetch_texel_3d_intensity_f32, /* FetchTexel3D */
528 fetch_texel_1d_f_intensity_f32, /* FetchTexel1Df */
529 fetch_texel_2d_f_intensity_f32, /* FetchTexel2Df */
530 fetch_texel_3d_f_intensity_f32, /* FetchTexel3Df */
531 store_texel_intensity_f32 /* StoreTexel */
532 };
533
534 const struct gl_texture_format _mesa_texformat_intensity_float16 = {
535 MESA_FORMAT_INTENSITY_FLOAT16, /* MesaFormat */
536 GL_INTENSITY, /* BaseFormat */
537 GL_FLOAT, /* DataType */
538 0, /* RedBits */
539 0, /* GreenBits */
540 0, /* BlueBits */
541 0, /* AlphaBits */
542 0, /* LuminanceBits */
543 8 * sizeof(GLhalfARB), /* IntensityBits */
544 0, /* IndexBits */
545 0, /* DepthBits */
546 1 * sizeof(GLhalfARB), /* TexelBytes */
547 _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */
548 fetch_texel_1d_intensity_f16, /* FetchTexel1D */
549 fetch_texel_2d_intensity_f16, /* FetchTexel2D */
550 fetch_texel_3d_intensity_f16, /* FetchTexel3D */
551 fetch_texel_1d_f_intensity_f16, /* FetchTexel1Df */
552 fetch_texel_2d_f_intensity_f16, /* FetchTexel2Df */
553 fetch_texel_3d_f_intensity_f16, /* FetchTexel3Df */
554 store_texel_intensity_f16 /* StoreTexel */
555 };
556
557
558 /*@}*/
559
560
561 /***************************************************************/
562 /** \name Hardware formats */
563 /*@{*/
564
565 const struct gl_texture_format _mesa_texformat_rgba8888 = {
566 MESA_FORMAT_RGBA8888, /* MesaFormat */
567 GL_RGBA, /* BaseFormat */
568 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
569 8, /* RedBits */
570 8, /* GreenBits */
571 8, /* BlueBits */
572 8, /* AlphaBits */
573 0, /* LuminanceBits */
574 0, /* IntensityBits */
575 0, /* IndexBits */
576 0, /* DepthBits */
577 4, /* TexelBytes */
578 _mesa_texstore_rgba8888, /* StoreTexImageFunc */
579 fetch_texel_1d_rgba8888, /* FetchTexel1D */
580 fetch_texel_2d_rgba8888, /* FetchTexel2D */
581 fetch_texel_3d_rgba8888, /* FetchTexel3D */
582 fetch_texel_1d_f_rgba8888, /* FetchTexel1Df */
583 fetch_texel_2d_f_rgba8888, /* FetchTexel2Df */
584 fetch_texel_3d_f_rgba8888, /* FetchTexel3Df */
585 store_texel_rgba8888 /* StoreTexel */
586 };
587
588 const struct gl_texture_format _mesa_texformat_rgba8888_rev = {
589 MESA_FORMAT_RGBA8888_REV, /* MesaFormat */
590 GL_RGBA, /* BaseFormat */
591 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
592 8, /* RedBits */
593 8, /* GreenBits */
594 8, /* BlueBits */
595 8, /* AlphaBits */
596 0, /* LuminanceBits */
597 0, /* IntensityBits */
598 0, /* IndexBits */
599 0, /* DepthBits */
600 4, /* TexelBytes */
601 _mesa_texstore_rgba8888, /* StoreTexImageFunc */
602 fetch_texel_1d_rgba8888_rev, /* FetchTexel1D */
603 fetch_texel_2d_rgba8888_rev, /* FetchTexel2D */
604 fetch_texel_3d_rgba8888_rev, /* FetchTexel3D */
605 fetch_texel_1d_f_rgba8888_rev, /* FetchTexel1Df */
606 fetch_texel_2d_f_rgba8888_rev, /* FetchTexel2Df */
607 fetch_texel_3d_f_rgba8888_rev, /* FetchTexel3Df */
608 store_texel_rgba8888_rev /* StoreTexel */
609 };
610
611 const struct gl_texture_format _mesa_texformat_argb8888 = {
612 MESA_FORMAT_ARGB8888, /* MesaFormat */
613 GL_RGBA, /* BaseFormat */
614 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
615 8, /* RedBits */
616 8, /* GreenBits */
617 8, /* BlueBits */
618 8, /* AlphaBits */
619 0, /* LuminanceBits */
620 0, /* IntensityBits */
621 0, /* IndexBits */
622 0, /* DepthBits */
623 4, /* TexelBytes */
624 _mesa_texstore_argb8888, /* StoreTexImageFunc */
625 fetch_texel_1d_argb8888, /* FetchTexel1D */
626 fetch_texel_2d_argb8888, /* FetchTexel2D */
627 fetch_texel_3d_argb8888, /* FetchTexel3D */
628 fetch_texel_1d_f_argb8888, /* FetchTexel1Df */
629 fetch_texel_2d_f_argb8888, /* FetchTexel2Df */
630 fetch_texel_3d_f_argb8888, /* FetchTexel3Df */
631 store_texel_argb8888 /* StoreTexel */
632 };
633
634 const struct gl_texture_format _mesa_texformat_argb8888_rev = {
635 MESA_FORMAT_ARGB8888_REV, /* MesaFormat */
636 GL_RGBA, /* BaseFormat */
637 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
638 8, /* RedBits */
639 8, /* GreenBits */
640 8, /* BlueBits */
641 8, /* AlphaBits */
642 0, /* LuminanceBits */
643 0, /* IntensityBits */
644 0, /* IndexBits */
645 0, /* DepthBits */
646 4, /* TexelBytes */
647 _mesa_texstore_argb8888, /* StoreTexImageFunc */
648 fetch_texel_1d_argb8888_rev, /* FetchTexel1D */
649 fetch_texel_2d_argb8888_rev, /* FetchTexel2D */
650 fetch_texel_3d_argb8888_rev, /* FetchTexel3D */
651 fetch_texel_1d_f_argb8888_rev, /* FetchTexel1Df */
652 fetch_texel_2d_f_argb8888_rev, /* FetchTexel2Df */
653 fetch_texel_3d_f_argb8888_rev, /* FetchTexel3Df */
654 store_texel_argb8888_rev /* StoreTexel */
655 };
656
657 const struct gl_texture_format _mesa_texformat_rgb888 = {
658 MESA_FORMAT_RGB888, /* MesaFormat */
659 GL_RGB, /* BaseFormat */
660 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
661 8, /* RedBits */
662 8, /* GreenBits */
663 8, /* BlueBits */
664 0, /* AlphaBits */
665 0, /* LuminanceBits */
666 0, /* IntensityBits */
667 0, /* IndexBits */
668 0, /* DepthBits */
669 3, /* TexelBytes */
670 _mesa_texstore_rgb888, /* StoreTexImageFunc */
671 fetch_texel_1d_rgb888, /* FetchTexel1D */
672 fetch_texel_2d_rgb888, /* FetchTexel2D */
673 fetch_texel_3d_rgb888, /* FetchTexel3D */
674 fetch_texel_1d_f_rgb888, /* FetchTexel1Df */
675 fetch_texel_2d_f_rgb888, /* FetchTexel2Df */
676 fetch_texel_3d_f_rgb888, /* FetchTexel3Df */
677 store_texel_rgb888 /* StoreTexel */
678 };
679
680 const struct gl_texture_format _mesa_texformat_bgr888 = {
681 MESA_FORMAT_BGR888, /* MesaFormat */
682 GL_RGB, /* BaseFormat */
683 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
684 8, /* RedBits */
685 8, /* GreenBits */
686 8, /* BlueBits */
687 0, /* AlphaBits */
688 0, /* LuminanceBits */
689 0, /* IntensityBits */
690 0, /* IndexBits */
691 0, /* DepthBits */
692 3, /* TexelBytes */
693 _mesa_texstore_bgr888, /* StoreTexImageFunc */
694 fetch_texel_1d_bgr888, /* FetchTexel1D */
695 fetch_texel_2d_bgr888, /* FetchTexel2D */
696 fetch_texel_3d_bgr888, /* FetchTexel3D */
697 fetch_texel_1d_f_bgr888, /* FetchTexel1Df */
698 fetch_texel_2d_f_bgr888, /* FetchTexel2Df */
699 fetch_texel_3d_f_bgr888, /* FetchTexel3Df */
700 store_texel_bgr888 /* StoreTexel */
701 };
702
703 const struct gl_texture_format _mesa_texformat_rgb565 = {
704 MESA_FORMAT_RGB565, /* MesaFormat */
705 GL_RGB, /* BaseFormat */
706 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
707 5, /* RedBits */
708 6, /* GreenBits */
709 5, /* BlueBits */
710 0, /* AlphaBits */
711 0, /* LuminanceBits */
712 0, /* IntensityBits */
713 0, /* IndexBits */
714 0, /* DepthBits */
715 2, /* TexelBytes */
716 _mesa_texstore_rgb565, /* StoreTexImageFunc */
717 fetch_texel_1d_rgb565, /* FetchTexel1D */
718 fetch_texel_2d_rgb565, /* FetchTexel2D */
719 fetch_texel_3d_rgb565, /* FetchTexel3D */
720 fetch_texel_1d_f_rgb565, /* FetchTexel1Df */
721 fetch_texel_2d_f_rgb565, /* FetchTexel2Df */
722 fetch_texel_3d_f_rgb565, /* FetchTexel3Df */
723 store_texel_rgb565 /* StoreTexel */
724 };
725
726 const struct gl_texture_format _mesa_texformat_rgb565_rev = {
727 MESA_FORMAT_RGB565_REV, /* MesaFormat */
728 GL_RGB, /* BaseFormat */
729 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
730 5, /* RedBits */
731 6, /* GreenBits */
732 5, /* BlueBits */
733 0, /* AlphaBits */
734 0, /* LuminanceBits */
735 0, /* IntensityBits */
736 0, /* IndexBits */
737 0, /* DepthBits */
738 2, /* TexelBytes */
739 _mesa_texstore_rgb565, /* StoreTexImageFunc */
740 fetch_texel_1d_rgb565_rev, /* FetchTexel1D */
741 fetch_texel_2d_rgb565_rev, /* FetchTexel2D */
742 fetch_texel_3d_rgb565_rev, /* FetchTexel3D */
743 fetch_texel_1d_f_rgb565_rev, /* FetchTexel1Df */
744 fetch_texel_2d_f_rgb565_rev, /* FetchTexel2Df */
745 fetch_texel_3d_f_rgb565_rev, /* FetchTexel3Df */
746 store_texel_rgb565_rev /* StoreTexel */
747 };
748
749 const struct gl_texture_format _mesa_texformat_argb4444 = {
750 MESA_FORMAT_ARGB4444, /* MesaFormat */
751 GL_RGBA, /* BaseFormat */
752 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
753 4, /* RedBits */
754 4, /* GreenBits */
755 4, /* BlueBits */
756 4, /* AlphaBits */
757 0, /* LuminanceBits */
758 0, /* IntensityBits */
759 0, /* IndexBits */
760 0, /* DepthBits */
761 2, /* TexelBytes */
762 _mesa_texstore_argb4444, /* StoreTexImageFunc */
763 fetch_texel_1d_argb4444, /* FetchTexel1D */
764 fetch_texel_2d_argb4444, /* FetchTexel2D */
765 fetch_texel_3d_argb4444, /* FetchTexel3D */
766 fetch_texel_1d_f_argb4444, /* FetchTexel1Df */
767 fetch_texel_2d_f_argb4444, /* FetchTexel2Df */
768 fetch_texel_3d_f_argb4444, /* FetchTexel3Df */
769 store_texel_argb4444 /* StoreTexel */
770 };
771
772 const struct gl_texture_format _mesa_texformat_argb4444_rev = {
773 MESA_FORMAT_ARGB4444_REV, /* MesaFormat */
774 GL_RGBA, /* BaseFormat */
775 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
776 4, /* RedBits */
777 4, /* GreenBits */
778 4, /* BlueBits */
779 4, /* AlphaBits */
780 0, /* LuminanceBits */
781 0, /* IntensityBits */
782 0, /* IndexBits */
783 0, /* DepthBits */
784 2, /* TexelBytes */
785 _mesa_texstore_argb4444, /* StoreTexImageFunc */
786 fetch_texel_1d_argb4444_rev, /* FetchTexel1D */
787 fetch_texel_2d_argb4444_rev, /* FetchTexel2D */
788 fetch_texel_3d_argb4444_rev, /* FetchTexel3D */
789 fetch_texel_1d_f_argb4444_rev, /* FetchTexel1Df */
790 fetch_texel_2d_f_argb4444_rev, /* FetchTexel2Df */
791 fetch_texel_3d_f_argb4444_rev, /* FetchTexel3Df */
792 store_texel_argb4444_rev /* StoreTexel */
793 };
794
795 const struct gl_texture_format _mesa_texformat_argb1555 = {
796 MESA_FORMAT_ARGB1555, /* MesaFormat */
797 GL_RGBA, /* BaseFormat */
798 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
799 5, /* RedBits */
800 5, /* GreenBits */
801 5, /* BlueBits */
802 1, /* AlphaBits */
803 0, /* LuminanceBits */
804 0, /* IntensityBits */
805 0, /* IndexBits */
806 0, /* DepthBits */
807 2, /* TexelBytes */
808 _mesa_texstore_argb1555, /* StoreTexImageFunc */
809 fetch_texel_1d_argb1555, /* FetchTexel1D */
810 fetch_texel_2d_argb1555, /* FetchTexel2D */
811 fetch_texel_3d_argb1555, /* FetchTexel3D */
812 fetch_texel_1d_f_argb1555, /* FetchTexel1Df */
813 fetch_texel_2d_f_argb1555, /* FetchTexel2Df */
814 fetch_texel_3d_f_argb1555, /* FetchTexel3Df */
815 store_texel_argb1555 /* StoreTexel */
816 };
817
818 const struct gl_texture_format _mesa_texformat_argb1555_rev = {
819 MESA_FORMAT_ARGB1555_REV, /* MesaFormat */
820 GL_RGBA, /* BaseFormat */
821 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
822 5, /* RedBits */
823 5, /* GreenBits */
824 5, /* BlueBits */
825 1, /* AlphaBits */
826 0, /* LuminanceBits */
827 0, /* IntensityBits */
828 0, /* IndexBits */
829 0, /* DepthBits */
830 2, /* TexelBytes */
831 _mesa_texstore_argb1555, /* StoreTexImageFunc */
832 fetch_texel_1d_argb1555_rev, /* FetchTexel1D */
833 fetch_texel_2d_argb1555_rev, /* FetchTexel2D */
834 fetch_texel_3d_argb1555_rev, /* FetchTexel3D */
835 fetch_texel_1d_f_argb1555_rev, /* FetchTexel1Df */
836 fetch_texel_2d_f_argb1555_rev, /* FetchTexel2Df */
837 fetch_texel_3d_f_argb1555_rev, /* FetchTexel3Df */
838 store_texel_argb1555_rev /* StoreTexel */
839 };
840
841 const struct gl_texture_format _mesa_texformat_al88 = {
842 MESA_FORMAT_AL88, /* MesaFormat */
843 GL_LUMINANCE_ALPHA, /* BaseFormat */
844 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
845 0, /* RedBits */
846 0, /* GreenBits */
847 0, /* BlueBits */
848 8, /* AlphaBits */
849 8, /* LuminanceBits */
850 0, /* IntensityBits */
851 0, /* IndexBits */
852 0, /* DepthBits */
853 2, /* TexelBytes */
854 _mesa_texstore_al88, /* StoreTexImageFunc */
855 fetch_texel_1d_al88, /* FetchTexel1D */
856 fetch_texel_2d_al88, /* FetchTexel2D */
857 fetch_texel_3d_al88, /* FetchTexel3D */
858 fetch_texel_1d_f_al88, /* FetchTexel1Df */
859 fetch_texel_2d_f_al88, /* FetchTexel2Df */
860 fetch_texel_3d_f_al88, /* FetchTexel3Df */
861 store_texel_al88 /* StoreTexel */
862 };
863
864 const struct gl_texture_format _mesa_texformat_al88_rev = {
865 MESA_FORMAT_AL88_REV, /* MesaFormat */
866 GL_LUMINANCE_ALPHA, /* BaseFormat */
867 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
868 0, /* RedBits */
869 0, /* GreenBits */
870 0, /* BlueBits */
871 8, /* AlphaBits */
872 8, /* LuminanceBits */
873 0, /* IntensityBits */
874 0, /* IndexBits */
875 0, /* DepthBits */
876 2, /* TexelBytes */
877 _mesa_texstore_al88, /* StoreTexImageFunc */
878 fetch_texel_1d_al88_rev, /* FetchTexel1D */
879 fetch_texel_2d_al88_rev, /* FetchTexel2D */
880 fetch_texel_3d_al88_rev, /* FetchTexel3D */
881 fetch_texel_1d_f_al88_rev, /* FetchTexel1Df */
882 fetch_texel_2d_f_al88_rev, /* FetchTexel2Df */
883 fetch_texel_3d_f_al88_rev, /* FetchTexel3Df */
884 store_texel_al88_rev /* StoreTexel */
885 };
886
887 const struct gl_texture_format _mesa_texformat_rgb332 = {
888 MESA_FORMAT_RGB332, /* MesaFormat */
889 GL_RGB, /* BaseFormat */
890 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
891 3, /* RedBits */
892 3, /* GreenBits */
893 2, /* BlueBits */
894 0, /* AlphaBits */
895 0, /* LuminanceBits */
896 0, /* IntensityBits */
897 0, /* IndexBits */
898 0, /* DepthBits */
899 1, /* TexelBytes */
900 _mesa_texstore_rgb332, /* StoreTexImageFunc */
901 fetch_texel_1d_rgb332, /* FetchTexel1D */
902 fetch_texel_2d_rgb332, /* FetchTexel2D */
903 fetch_texel_3d_rgb332, /* FetchTexel3D */
904 fetch_texel_1d_f_rgb332, /* FetchTexel1Df */
905 fetch_texel_2d_f_rgb332, /* FetchTexel2Df */
906 fetch_texel_3d_f_rgb332, /* FetchTexel3Df */
907 store_texel_rgb332 /* StoreTexel */
908 };
909
910 const struct gl_texture_format _mesa_texformat_a8 = {
911 MESA_FORMAT_A8, /* MesaFormat */
912 GL_ALPHA, /* BaseFormat */
913 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
914 0, /* RedBits */
915 0, /* GreenBits */
916 0, /* BlueBits */
917 8, /* AlphaBits */
918 0, /* LuminanceBits */
919 0, /* IntensityBits */
920 0, /* IndexBits */
921 0, /* DepthBits */
922 1, /* TexelBytes */
923 _mesa_texstore_a8, /* StoreTexImageFunc */
924 fetch_texel_1d_a8, /* FetchTexel1D */
925 fetch_texel_2d_a8, /* FetchTexel2D */
926 fetch_texel_3d_a8, /* FetchTexel3D */
927 fetch_texel_1d_f_a8, /* FetchTexel1Df */
928 fetch_texel_2d_f_a8, /* FetchTexel2Df */
929 fetch_texel_3d_f_a8, /* FetchTexel3Df */
930 store_texel_a8 /* StoreTexel */
931 };
932
933 const struct gl_texture_format _mesa_texformat_l8 = {
934 MESA_FORMAT_L8, /* MesaFormat */
935 GL_LUMINANCE, /* BaseFormat */
936 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
937 0, /* RedBits */
938 0, /* GreenBits */
939 0, /* BlueBits */
940 0, /* AlphaBits */
941 8, /* LuminanceBits */
942 0, /* IntensityBits */
943 0, /* IndexBits */
944 0, /* DepthBits */
945 1, /* TexelBytes */
946 _mesa_texstore_a8,/*yes*/ /* StoreTexImageFunc */
947 fetch_texel_1d_l8, /* FetchTexel1D */
948 fetch_texel_2d_l8, /* FetchTexel2D */
949 fetch_texel_3d_l8, /* FetchTexel3D */
950 fetch_texel_1d_f_l8, /* FetchTexel1Df */
951 fetch_texel_2d_f_l8, /* FetchTexel2Df */
952 fetch_texel_3d_f_l8, /* FetchTexel3Df */
953 store_texel_l8 /* StoreTexel */
954 };
955
956 const struct gl_texture_format _mesa_texformat_i8 = {
957 MESA_FORMAT_I8, /* MesaFormat */
958 GL_INTENSITY, /* BaseFormat */
959 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
960 0, /* RedBits */
961 0, /* GreenBits */
962 0, /* BlueBits */
963 0, /* AlphaBits */
964 0, /* LuminanceBits */
965 8, /* IntensityBits */
966 0, /* IndexBits */
967 0, /* DepthBits */
968 1, /* TexelBytes */
969 _mesa_texstore_a8,/*yes*/ /* StoreTexImageFunc */
970 fetch_texel_1d_i8, /* FetchTexel1D */
971 fetch_texel_2d_i8, /* FetchTexel2D */
972 fetch_texel_3d_i8, /* FetchTexel3D */
973 fetch_texel_1d_f_i8, /* FetchTexel1Df */
974 fetch_texel_2d_f_i8, /* FetchTexel2Df */
975 fetch_texel_3d_f_i8, /* FetchTexel3Df */
976 store_texel_i8 /* StoreTexel */
977 };
978
979 const struct gl_texture_format _mesa_texformat_ci8 = {
980 MESA_FORMAT_CI8, /* MesaFormat */
981 GL_COLOR_INDEX, /* BaseFormat */
982 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
983 0, /* RedBits */
984 0, /* GreenBits */
985 0, /* BlueBits */
986 0, /* AlphaBits */
987 0, /* LuminanceBits */
988 0, /* IntensityBits */
989 8, /* IndexBits */
990 0, /* DepthBits */
991 1, /* TexelBytes */
992 _mesa_texstore_ci8, /* StoreTexImageFunc */
993 fetch_texel_1d_ci8, /* FetchTexel1D */
994 fetch_texel_2d_ci8, /* FetchTexel2D */
995 fetch_texel_3d_ci8, /* FetchTexel3D */
996 fetch_texel_1d_f_ci8, /* FetchTexel1Df */
997 fetch_texel_2d_f_ci8, /* FetchTexel2Df */
998 fetch_texel_3d_f_ci8, /* FetchTexel3Df */
999 store_texel_ci8 /* StoreTexel */
1000 };
1001
1002 const struct gl_texture_format _mesa_texformat_ycbcr = {
1003 MESA_FORMAT_YCBCR, /* MesaFormat */
1004 GL_YCBCR_MESA, /* BaseFormat */
1005 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
1006 0, /* RedBits */
1007 0, /* GreenBits */
1008 0, /* BlueBits */
1009 0, /* AlphaBits */
1010 0, /* LuminanceBits */
1011 0, /* IntensityBits */
1012 0, /* IndexBits */
1013 0, /* DepthBits */
1014 2, /* TexelBytes */
1015 _mesa_texstore_ycbcr, /* StoreTexImageFunc */
1016 fetch_texel_1d_ycbcr, /* FetchTexel1D */
1017 fetch_texel_2d_ycbcr, /* FetchTexel2D */
1018 fetch_texel_3d_ycbcr, /* FetchTexel3D */
1019 fetch_texel_1d_f_ycbcr, /* FetchTexel1Df */
1020 fetch_texel_2d_f_ycbcr, /* FetchTexel2Df */
1021 fetch_texel_3d_f_ycbcr, /* FetchTexel3Df */
1022 store_texel_ycbcr /* StoreTexel */
1023 };
1024
1025 const struct gl_texture_format _mesa_texformat_ycbcr_rev = {
1026 MESA_FORMAT_YCBCR_REV, /* MesaFormat */
1027 GL_YCBCR_MESA, /* BaseFormat */
1028 GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
1029 0, /* RedBits */
1030 0, /* GreenBits */
1031 0, /* BlueBits */
1032 0, /* AlphaBits */
1033 0, /* LuminanceBits */
1034 0, /* IntensityBits */
1035 0, /* IndexBits */
1036 0, /* DepthBits */
1037 2, /* TexelBytes */
1038 _mesa_texstore_ycbcr, /* StoreTexImageFunc */
1039 fetch_texel_1d_ycbcr_rev, /* FetchTexel1D */
1040 fetch_texel_2d_ycbcr_rev, /* FetchTexel2D */
1041 fetch_texel_3d_ycbcr_rev, /* FetchTexel3D */
1042 fetch_texel_1d_f_ycbcr_rev, /* FetchTexel1Df */
1043 fetch_texel_2d_f_ycbcr_rev, /* FetchTexel2Df */
1044 fetch_texel_3d_f_ycbcr_rev, /* FetchTexel3Df */
1045 store_texel_ycbcr_rev /* StoreTexel */
1046 };
1047
1048 /*@}*/
1049
1050
1051 /***************************************************************/
1052 /** \name Null format (useful for proxy textures) */
1053 /*@{*/
1054
1055 const struct gl_texture_format _mesa_null_texformat = {
1056 -1, /* MesaFormat */
1057 0, /* BaseFormat */
1058 GL_NONE, /* DataType */
1059 0, /* RedBits */
1060 0, /* GreenBits */
1061 0, /* BlueBits */
1062 0, /* AlphaBits */
1063 0, /* LuminanceBits */
1064 0, /* IntensityBits */
1065 0, /* IndexBits */
1066 0, /* DepthBits */
1067 0, /* TexelBytes */
1068 NULL, /* StoreTexImageFunc */
1069 fetch_null_texel, /* FetchTexel1D */
1070 fetch_null_texel, /* FetchTexel2D */
1071 fetch_null_texel, /* FetchTexel3D */
1072 fetch_null_texelf, /* FetchTexel1Df */
1073 fetch_null_texelf, /* FetchTexel2Df */
1074 fetch_null_texelf, /* FetchTexel3Df */
1075 store_null_texel /* StoreTexel */
1076 };
1077
1078 /*@}*/
1079
1080
1081 /**
1082 * Choose an appropriate texture format given the format, type and
1083 * internalFormat parameters passed to glTexImage().
1084 *
1085 * \param ctx the GL context.
1086 * \param internalFormat user's prefered internal texture format.
1087 * \param format incoming image pixel format.
1088 * \param type incoming image data type.
1089 *
1090 * \return a pointer to a gl_texture_format object which describes the
1091 * choosen texture format, or NULL on failure.
1092 *
1093 * This is called via dd_function_table::ChooseTextureFormat. Hardware drivers
1094 * will typically override this function with a specialized version.
1095 */
1096 const struct gl_texture_format *
1097 _mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat,
1098 GLenum format, GLenum type )
1099 {
1100 (void) format;
1101 (void) type;
1102
1103 switch (internalFormat) {
1104 /* RGBA formats */
1105 case 4:
1106 case GL_RGBA:
1107 case GL_RGB10_A2:
1108 case GL_RGBA12:
1109 case GL_RGBA16:
1110 return &_mesa_texformat_rgba;
1111 case GL_RGBA8:
1112 return &_mesa_texformat_rgba8888;
1113 case GL_RGB5_A1:
1114 return &_mesa_texformat_argb1555;
1115 case GL_RGBA2:
1116 return &_mesa_texformat_argb4444_rev; /* just to test another format*/
1117 case GL_RGBA4:
1118 return &_mesa_texformat_argb4444;
1119
1120 /* RGB formats */
1121 case 3:
1122 case GL_RGB:
1123 case GL_RGB10:
1124 case GL_RGB12:
1125 case GL_RGB16:
1126 return &_mesa_texformat_rgb;
1127 case GL_RGB8:
1128 return &_mesa_texformat_rgb888;
1129 case GL_R3_G3_B2:
1130 return &_mesa_texformat_rgb332;
1131 case GL_RGB4:
1132 return &_mesa_texformat_rgb565_rev; /* just to test another format */
1133 case GL_RGB5:
1134 return &_mesa_texformat_rgb565;
1135
1136 /* Alpha formats */
1137 case GL_ALPHA:
1138 case GL_ALPHA4:
1139 case GL_ALPHA12:
1140 case GL_ALPHA16:
1141 return &_mesa_texformat_alpha;
1142 case GL_ALPHA8:
1143 return &_mesa_texformat_a8;
1144
1145 /* Luminance formats */
1146 case 1:
1147 case GL_LUMINANCE:
1148 case GL_LUMINANCE4:
1149 case GL_LUMINANCE12:
1150 case GL_LUMINANCE16:
1151 return &_mesa_texformat_luminance;
1152 case GL_LUMINANCE8:
1153 return &_mesa_texformat_l8;
1154
1155 /* Luminance/Alpha formats */
1156 case 2:
1157 case GL_LUMINANCE_ALPHA:
1158 case GL_LUMINANCE4_ALPHA4:
1159 case GL_LUMINANCE6_ALPHA2:
1160 case GL_LUMINANCE12_ALPHA4:
1161 case GL_LUMINANCE12_ALPHA12:
1162 case GL_LUMINANCE16_ALPHA16:
1163 return &_mesa_texformat_luminance_alpha;
1164 case GL_LUMINANCE8_ALPHA8:
1165 return &_mesa_texformat_al88;
1166
1167 case GL_INTENSITY:
1168 case GL_INTENSITY4:
1169 case GL_INTENSITY12:
1170 case GL_INTENSITY16:
1171 return &_mesa_texformat_intensity;
1172 case GL_INTENSITY8:
1173 return &_mesa_texformat_i8;
1174
1175 case GL_COLOR_INDEX:
1176 case GL_COLOR_INDEX1_EXT:
1177 case GL_COLOR_INDEX2_EXT:
1178 case GL_COLOR_INDEX4_EXT:
1179 case GL_COLOR_INDEX12_EXT:
1180 case GL_COLOR_INDEX16_EXT:
1181 case GL_COLOR_INDEX8_EXT:
1182 return &_mesa_texformat_ci8;
1183
1184 default:
1185 ; /* fallthrough */
1186 }
1187
1188 if (ctx->Extensions.SGIX_depth_texture) {
1189 switch (internalFormat) {
1190 case GL_DEPTH_COMPONENT:
1191 case GL_DEPTH_COMPONENT24_SGIX:
1192 case GL_DEPTH_COMPONENT32_SGIX:
1193 return &_mesa_texformat_depth_component_float32;
1194 case GL_DEPTH_COMPONENT16_SGIX:
1195 return &_mesa_texformat_depth_component16;
1196 default:
1197 ; /* fallthrough */
1198 }
1199 }
1200
1201 if (ctx->Extensions.ARB_texture_compression) {
1202 switch (internalFormat) {
1203 case GL_COMPRESSED_ALPHA_ARB:
1204 return &_mesa_texformat_alpha;
1205 case GL_COMPRESSED_LUMINANCE_ARB:
1206 return &_mesa_texformat_luminance;
1207 case GL_COMPRESSED_LUMINANCE_ALPHA_ARB:
1208 return &_mesa_texformat_luminance_alpha;
1209 case GL_COMPRESSED_INTENSITY_ARB:
1210 return &_mesa_texformat_intensity;
1211 case GL_COMPRESSED_RGB_ARB:
1212 if (ctx->Extensions.TDFX_texture_compression_FXT1)
1213 return &_mesa_texformat_rgb_fxt1;
1214 else if (ctx->Extensions.EXT_texture_compression_s3tc ||
1215 ctx->Extensions.S3_s3tc)
1216 return &_mesa_texformat_rgb_dxt1;
1217 else
1218 return &_mesa_texformat_rgb;
1219 case GL_COMPRESSED_RGBA_ARB:
1220 if (ctx->Extensions.TDFX_texture_compression_FXT1)
1221 return &_mesa_texformat_rgba_fxt1;
1222 else if (ctx->Extensions.EXT_texture_compression_s3tc ||
1223 ctx->Extensions.S3_s3tc)
1224 return &_mesa_texformat_rgba_dxt3; /* Not rgba_dxt1, see spec */
1225 else
1226 return &_mesa_texformat_rgba;
1227 default:
1228 ; /* fallthrough */
1229 }
1230 }
1231
1232 if (ctx->Extensions.MESA_ycbcr_texture) {
1233 if (internalFormat == GL_YCBCR_MESA) {
1234 if (type == GL_UNSIGNED_SHORT_8_8_MESA)
1235 return &_mesa_texformat_ycbcr;
1236 else
1237 return &_mesa_texformat_ycbcr_rev;
1238 }
1239 }
1240
1241 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
1242 switch (internalFormat) {
1243 case GL_COMPRESSED_RGB_FXT1_3DFX:
1244 return &_mesa_texformat_rgb_fxt1;
1245 case GL_COMPRESSED_RGBA_FXT1_3DFX:
1246 return &_mesa_texformat_rgba_fxt1;
1247 default:
1248 ; /* fallthrough */
1249 }
1250 }
1251
1252 if (ctx->Extensions.EXT_texture_compression_s3tc) {
1253 switch (internalFormat) {
1254 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
1255 return &_mesa_texformat_rgb_dxt1;
1256 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
1257 return &_mesa_texformat_rgba_dxt1;
1258 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
1259 return &_mesa_texformat_rgba_dxt3;
1260 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
1261 return &_mesa_texformat_rgba_dxt5;
1262 default:
1263 ; /* fallthrough */
1264 }
1265 }
1266
1267 if (ctx->Extensions.S3_s3tc) {
1268 switch (internalFormat) {
1269 case GL_RGB_S3TC:
1270 case GL_RGB4_S3TC:
1271 return &_mesa_texformat_rgb_dxt1;
1272 case GL_RGBA_S3TC:
1273 case GL_RGBA4_S3TC:
1274 return &_mesa_texformat_rgba_dxt3;
1275 default:
1276 ; /* fallthrough */
1277 }
1278 }
1279
1280 if (ctx->Extensions.ARB_texture_float) {
1281 switch (internalFormat) {
1282 case GL_ALPHA16F_ARB:
1283 return &_mesa_texformat_alpha_float16;
1284 case GL_ALPHA32F_ARB:
1285 return &_mesa_texformat_alpha_float32;
1286 case GL_LUMINANCE16F_ARB:
1287 return &_mesa_texformat_luminance_float16;
1288 case GL_LUMINANCE32F_ARB:
1289 return &_mesa_texformat_luminance_float32;
1290 case GL_LUMINANCE_ALPHA16F_ARB:
1291 return &_mesa_texformat_luminance_alpha_float16;
1292 case GL_LUMINANCE_ALPHA32F_ARB:
1293 return &_mesa_texformat_luminance_alpha_float32;
1294 case GL_INTENSITY16F_ARB:
1295 return &_mesa_texformat_intensity_float16;
1296 case GL_INTENSITY32F_ARB:
1297 return &_mesa_texformat_intensity_float32;
1298 case GL_RGB16F_ARB:
1299 return &_mesa_texformat_rgb_float16;
1300 case GL_RGB32F_ARB:
1301 return &_mesa_texformat_rgb_float32;
1302 case GL_RGBA16F_ARB:
1303 return &_mesa_texformat_rgba_float16;
1304 case GL_RGBA32F_ARB:
1305 return &_mesa_texformat_rgba_float32;
1306 default:
1307 ; /* fallthrough */
1308 }
1309 }
1310
1311 _mesa_problem(ctx, "unexpected format in _mesa_choose_tex_format()");
1312 return NULL;
1313 }